Bug 2577 - Incorrect return from float yn (2, 0X1.B2CDBEP+2)
Summary: Incorrect return from float yn (2, 0X1.B2CDBEP+2)
Status: NEW
Alias: None
Product: glibc
Classification: Unclassified
Component: math (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-04-14 19:23 UTC by H.J. Lu
Modified: 2019-04-10 08:50 UTC (History)
2 users (show)

See Also:
Host: x86_64-unknown-linux-gnu
Target: x86_64-unknown-linux-gnu
Build: x86_64-unknown-linux-gnu
Last reconfirmed:
fweimer: security-

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Description H.J. Lu 2006-04-14 19:23:39 UTC 
Failure: Test: yn (2, 0X1.B2CDBEP+2) == 0X1.CE210CP+0
Result:
 is:         -7.45058059692382812500e-09  -0x1.00000000000000000000p-27
 should be:   1.80519175529479980469e+00   0x1.ce210c00000000000000p+0
 difference:  1.80519175529479980469e+00   0x1.ce210c00000000000000p+0
 ulp       :  15143046.0000
 max.ulp   :  0.0000
Comment 1 Ulrich Drepper 2006-04-23 17:57:51 UTC 
Suspended until somebody comes up with a patch.
Comment 2 Joseph Myers 2012-02-26 17:55:33 UTC 
The correct answer is 0X1.14774CP-29.  glibc's value is still excessively inaccurate.